Table of Contents
Instructions For Installing Another Layer Of Plywood Acclimate the underlayment. Store underlayment in the room it will be installed in for 72 hours before the actual installation. Clean the subfloor. Start installing the plywood. Staple the boards in place. Fill the seams.
Can you put wood over subfloor?
Subfloors, such as vinyl, carpet, concrete, or ceramics cannot support a solid hardwood installation and should be removed before you install. An engineered hardwood can be installed over a concrete, wood, tile and full adhered vinyl subfloors when installed as a floating or glue-down floor.
Can you put plywood on top of plywood?
By working this way, there will be no need to introduce any form of liner between the old planks and the ply. Working with full sheets of ply will make your job easier and will improve the end result. Like all wooden flooring products, it’s a good idea to acclimatise your plywood before laying it.
Do I need to glue plywood to subfloor?
Many people don’t bother to glue down their plywood underlayment. Instead, they just screw or nail the boards to the subfloor. A plywood underlayment helps to strengthen a subfloor that has some flex or bend to it to make a more stable foundation for your floor.
Which way do you lay plywood subfloor?
Install plywood underlayment smooth side up. To avoid damage to the surface, install underlayment immediately before laying the finish flooring.
What goes on top of subfloor?
Underlayment: Some types of flooring can be installed directly on top of the subfloor, such as vinyl flooring. Other types need a middle layer, called underlayment, such as laminate,carpet and tile.
Is it better to use OSB or plywood for subfloor?
The National Tile Contractors Association and the Resilient Floor Covering Institute both recommend plywood for subflooring and underlayment, because it doesn’t have the risk of swollen edges that OSB does. Plywood also has a slight advantage in stiffness, which means that subflooring panels need not be quite as thick.
What kind of flooring can you put over plywood?
As a general rule, you can install vinyl flooring over plywood. In fact, it’s recommended to put a ¼ inch (6 mm) layer of plywood on top of the subfloor you’re installing the vinyl on to.
Can you put plywood over bad subfloor?
It’s fairly easy to install plywood over subfloor, but you’ll want to give yourself plenty of time to complete the job. You will want to make sure that you leave at least a 1/8″ gap between the walls and the plywood sheets.
Can you put subfloor over old subfloor?
One of the benefits of removing the old flooring is it allows you the chance to fix any loose subflooring or squeaks by re-securing the main subfloor to the floor joists prior to installing the new flooring. With all that being said though the answer is YES you can install New Wood Flooring over the old.
What do you put between subfloor and underlayment?
Use building paper! Yep, put down an underlayment of 15-pound felt building paper between a wood subfloor and your hardwood planks, and you can reduce the chance of squeaky floors and control moisture.
Should I screw or nail subfloor?
Using code-approved screws rather than nails is the best option for avoiding movement. If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.
How many layers of plywood do you need for a subfloor?
The first is to lay two layers of 3/8-inch plywood over the slab without fastening or gluing them to the slab. One layer is laid, and the second layer is stapled or glued perpendicularly or diagonally over the top.
What size plywood is best for subfloor?
The minimum thickness of plywood for subflooring is about 5/8 inch. Since it does not hold fasteners as well as plywood, OSB must be a little thicker, or at least 23/32 inch.
Do you have to use subfloor adhesive?
Although using a subfloor adhesive (or subfloor glue) is not required by code, it is a standard practice that can help prevent floor squeaks by reducing the chance for movement at the panel-to-joist connection. A quality subfloor adhesive will also increase the overall stiffness of the floor.
What is the best subfloor adhesive?
If you are looking for a subfloor adhesive with a powerful, permanent bond, try Loctite PL 400 VOC Subfloor & Deck Adhesive. It sets quickly and is ideal for heavy-duty interior or exterior subfloor installation in all types of environmental conditions. That means it even bonds wet and frozen lumber!.
Should subfloor be parallel or perpendicular?
1 Answer. Most subfloor and underlayment sheet goods are manufactured with greater strength/stiffness on one axis. It may have longer wood strands in that direction, or it may have a greater number of plies with grain in that direction. For this reason it should be oriented perpendicular to framing members.
Does subfloor need to be tongue and groove?
For subflooring, you use tongue and groove plywood. The tongue and groove are only along the 8 foot edges. On the four foot edges, your seams will fall on joist tops, so no need for tongue and groove.
How do you fill gaps in plywood?
While it’s best to fill any voids prior to attaching pieces of plywood together, you can fill voids between plywood sheets with wood filler. Sand the surface of the plywood with 80-grit sandpaper. Combine wood filler with some of the sawdust in a small container. Fill a syringe with the wood filler.
Do I need two layers of subfloor?
That’s the usual approach. Almost no one puts down double-thick subfloor in residential applications (for cost and handling reasons), and both layers need to be fastened to joists. Only thin underlayment can be fastened just to the subfloor.
How much does a 4×8 sheet of plywood cost?
How much does plywood cost? Type Thickness Average Price (4×8) Treated 3/8 $40 to $50 Treated 1/2 $50 to $65 Treated 3/4 $60 to $75 Hardwood (birch or oak) 1/4 $20 to $40.
Is pine plywood good for subfloor?
Yes, you can use pine subfloors as primary flooring. In many older houses, the pine subfloor was the only floor and it held up well. Uncovered pine subflooring appeals to recycling enthusiasts as well as fans of distressed wood.
What is the thickness of 3/4 inch plywood?
The actual thickness is just like it sounds – the actual thickness of the plywood panels you buy, after sanding. Typically, the actual thickness of plywood is 1/32 inch less than the nominal thickness.Thickness in millimeters. Thickness (inch) Thickness (milimeter) 3/4” 19mm 1-1/8” 28.6mm 1-1/4” 31.75mm.
Does plywood need expansion gap?
APA recommends a 1/8-inch space between panel edge and end joints. Plywood and oriented strand board (OSB), like all wood products, will expand or shrink slightly with changes in moisture content. If the wood structural panels are tightly butted, there is no room for expansion and buckling can occur.
